How to add images from resources folder as attachment and embed into outlook mail body in C#
Question
I have a couple of images stored in visual studio project Resources folder, and I have to load them and display on the outlook mail body. Here it is the code:
Bitmap b = new Bitmap(Properties.Resources.MyImage);
ImageConverter ic = new ImageConverter();
Byte[] ba = (Byte[])ic.ConvertTo(b, typeof(Byte[]));
MemoryStream logo = new MemoryStream(ba);
LinkedResource companyImage = new LinkedResource(logo);
companyImage.ContentId = "companyLogo";
mailitem.HTMLBody += "<img src=\"cid:companyLogo\">";
However, it cannot display on the mail body but a 'empty box with red x'. Can you give me some ideas?
2 answers
solution1
-1 2015-06-18 03:49:26
Maybe you can try this.
string htmlBody = "<html><body><h1>Picture</h1><br><img src=\"cid:filename\"></body></html>";
AlternateView avHtml = AlternateView.CreateAlternateViewFromString
(htmlBody, null, MediaTypeNames.Text.Html);
var fileName = Guid.NewGuid.ToString();
var path = Path.Combine(
Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData)),
fileName);
File.WriteAllBytes(path, Properties.Resources.Pic);
LinkedResource inline = new LinkedResource(path, MediaTypeNames.Image.Jpeg); //Jpeg or something
inline.ContentId = Guid.NewGuid().ToString();
avHtml.LinkedResources.Add(inline);
MailMessage mail = new MailMessage();
mail.AlternateViews.Add(avHtml);
Attachment att = new Attachment(filePath);
att.ContentDisposition.Inline = true;
mail.From = from_email;
mail.To.Add(data.email);
mail.Subject = "Here is your subject;
mail.Body = String.Format(
"Here is the previous HTML Body" +
@"<img src=""cid:{0}"" />", inline.ContentId);
mail.IsBodyHtml = true;
mail.Attachments.Add(att);
- No need to change your picture to memory stream
- For easy use, please do your content of e-mail to be HTML
- You can find in the code above
You can refer to this link too
solution2
-1 ACCPTED 2015-06-18 05:29:27
Create an attachment and set the PR_ATTACH_CONTENT_ID property (DASL name "http://schemas.microsoft.com/mapi/proptag/0x3712001F" ) using Attachment.PropertyAccessor.SetProperty .
Your HTML body ( MailItem.HTMLBody property) would then need to reference that image attachment through the cid:
img src="cid:xyz"
where xyz is the value of the PR_ATTACH_CONTENT_ID property.
Look at an existing message with OutlookSpy (click IMessage button).
attachment = mailitem.Attachments.Add("c:\temp\MyPicture.jpg");
attachment.PropertyAccessor.SetProperty("http://schemas.microsoft.com/mapi/proptag/0x3712001F", "MyId1");
mailitem.HTMLBody = "<html><body>Test image <img src=""cid:MyId1""></body></html>";
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